HY5DU12822C Datasheet, PDF (6/31 Pages) Hynix Semiconductor – 512Mb DDR SDRAM

FUNCTIONAL BLOCK DIAGRAM (128Mx4)
4Banks x 32Mbit x 4 I/O Double Data Rate Synchronous DRAM
1HY5DU12422C(L)TP
HY5DU12822C(L)TP
HY5DU121622C(L)TP
CLK
/CLK
CKE
/CS
Command
/RAS
Decoder
/CAS
/WE
DM
Bank
Control
Mode
Register
Row
Decoder
Write Data Register
4
2-bit Prefetch Unit
8
32Mx4/Bank0
32Mx4/Bank1
32Mx4/Bank2
32Mx4/Bank3
8
4
DS
DQ [0:3]
A0~A12
BA0, BA1
Address
Buffer
Column Decoder
Column Address
Counter
CLK_DLL
DS
CLK
DLL
/CLK Block
DQS
Data Strobe
Transmitter
Data Strobe
Receiver
Mode
Register
Rev. 1.0 / Mar. 2005
6